Shock-absorber for automobiles and other vehicles.



G. c, MARTIN. snoer Baumann ron AUTOMOBILES nrno'rnnn YEHIGLEST APPLICATION FILED APB. I, 1909.

Patented sept. 5;'1911.

mi z/ (george f @MQ/W- STATES 'PATENT OFFICE..

-gjnnvG-nf dirle.:1I-"1"ne?4 *manning for nos ancianas, "c ALIron'NIA.

Tee-ll wbQnijt vmay concern:

B it fknown,that I, Gnonon CUSHING avcitizenofthe United States, resib'` at Los Angeles, in the count of Los 1y es andfState of California, ave in vented fa new and `use :fiil Shock-Absorber Vfor .Automobiles 5 and other Vehicles, of whichthefollowing is a specification. The-object` of Lthis inventionis to make 'provisiontwhereby the bod of the vehicle will bearried evenly wit comparatively up-and-'down motion.' 'f A feature of this invention-is' the combi 'nat-ion with -thels rings, of means whereby the@expansion o `theme rings 1after compression 'is yieldingly resisted' and the compression of the springs is unresisted except at the compressingV movement. e, The inventionfis capable of` application in `relation where two movable 'elements f eldin'ly held -apart by resilient means, Ieln oy-in com ination with such elements an' `resilient means a slip-rod and a firictioneclntch arrangedto .allow the rod to 26`s1ide as said `move `toward eachgother, fand to be ridnonally gripped `axxdftliereby retardedas the elements move ,y apart; the `princi le that the resiliency the spring, nly employed it? take 0" ,3B the movement of the one element without jectonably lmovement to the other kfelementby reason of the expansion of 4'111.Affzfeatnreistosc construct the device 86 thatltheenitial com-pressing movement of shall be resisted somewhat, thus :for the; comparatively great riliencyof-'the-sprmg atthat time. ,i Infap yingfvthe. invention to a motor-,car 0 vor;v othergvehlcle, `a al1 -rod and', gnppin Y ylll?,device f or ieliitch-v there or ,may-.bena phe t1-md @preferably suchf idevice Specification of Letters-Patent. application med ppn-.10, isos. serial ne; 459,214.

, ivot514ibeing-faleprvidedfwith@S `0 between .each axle andwthevehicle; e, is applied at v v` "5, th i Thgezfzccompanying; illustrate i sinocxfansonnnn Fon. AUTOMOBILES AND OTHER VEHICLES.

Paeentedspt. 5, 191i.

The slip-rod 1 is a smooth cylinder rovided at one end with an eye 2 adapted to form a universal joint in connectionl with a pin' 3 carried by a clip-plate 4 adapted for attachment to a movable element as the base 5 of thespring or the frame 6 of the vehiclebody. In the drawing, the clip-plate 4 is shown fastened by the clips 7 to the base 5 Aof the spring and the. axle-tree 8. The

cglindrica-l body ofthe 'rod 1is extended 85 t rough a gripping'device 'or friction-clutch 9 arranged to more orless forcibly grip the rod 1 and to allow thes'ame to slide with .more or less resistance responsive to the recoil of the spring leaves 54, 55. Means arev provided whereby the frictional resistance of the slip-rod may beregulated.

The clutch-mechanism is mounted inside a swiveled case compris a box 10 and-a cover 11 fastenedr toget er by suitable 15 means as the screws 12 said case'being iv,- otally connected :by pivots 13, 14.wi a pivoted frame 15 which is pivoted byr studs 16, 17, to bracket-arms 18 `nespee tively `y bracket-.plates 19tl1at are rovlded 33 with screw-holes`20 and thereby ulg ted to be fastened by screws` 21A to a mova le element as the frame.' The piviots`g13,` 414, frame 15, and'stnds 16, 17, mount the case 10 of the clntchsmecllanism withanniversal 35 joint to. accommodate all of the movements Vof theA spring, the rod, `and `the(,vc'ehicle- 4 frame relative to each other. The pivot '13 is formedas a art of the boxlOlandts' a O eframe l15. Thefivot 14 90 has ascrew-threaded portion screw into .the `screw-threaded seat 24vy in the jame 15 oppplsiltse the` `22, andgifthefnner endo vetiS-cyhndi'wl Wellfit ing 25 inv,v eooverfllof theboxlO-,jsaid plllrel uml hwhl,

, carries the scat 48. However: the block 50 ment in a measure immaterial. This and other variations. ma

'rod andshoe. The set-screw .'33 forms an i swmging too" ar down case the brake--v shoe is to the' slip-rod l witha.

the" swinging "ber "constitute u toggle-y the 'slip-rodv on the i smbmkshft ,Wedgengainst zthe -sliplrod portions "5i-and 5s-ofthe is ring-sothat whenfthesgi-iig ceasesto j orce the rela- 'ftively-mova le e l ll`Wifi? '0f the springend the frame Germ when 'sented in :i concave seat 43 so es to move infa seat 52 in the box so that the brakewhieh it may he moved to shift the jaw as occasion may demand to'engnge the rod l.. l The box li! of the cnf-:e has two elmed holes i 32 and 3b provided with. glands 34% :md packlngf-elmnzbc-rs 3G, 3x', will :melting i thereiifto` en -k the slip-rod i und allow the same to slip through the boli withmit allowing the Gsm-:pe of oil` from the chamber 39 of the ense which is charged with oil to prevent noise, wear and he ting. ".lf'hc-,n the slip-rod l. is mounted in ih; glands the javi 2*5 :nay be adjusted to :"'f i.- f nini-t one side of the slip-rod Wing the screw 31 to appro ,'riately more the Wedge 30. 4.0 rovided with :i groove 4 1 to fit the other side of the-slip-rod 1. Seid brake-shoe is pivotzilly connected with a swinging bar' 42 by mea-ns of n pivot 4t?, passing through a tongue -io the bnr 42 Vand also through ears e151: Gg of the orakeshoe 40. Said bar has e rounded end 47 pivotally on its end opposite the brake-shoe :md is adjustabletownrd and from the sliprod 1 by any suitable means :is ajset-scrcw 49 ope-uiting on a movable block 50 which muy be adjusted by a- Wedge-connivence the same as the shoe 28 is adjusted, and the shoe 2S-may be ad'usted by :1 set-screw in 'i manner corres on .to that in which the block 50 is adjusted; 'the method ofl adjustbe made without departing from the spirit of the invention. I The bar42- is yieldingly held toward the eye 210i the slip-rod byu spring 51 seated shoe 4U,the 11:11:42, and the seatpiece 50 form the elements of a toggle-joint' operable bythe friction of the moving .slip-rod to increase the friction on the rod when the elutcll moves toward the eye or the'eye toward the clutch', and to relieve such frietion onv reverse relative movement of the adjustable sto to' prevent the bnrA from limited The brake-shoel-O and joint construction orable by friction of rake-shoe' to causethe underY the of the expanding resilient eomes :gto .Y normixl l pos1tion',f.

.,-ffeithside of the case near the eye fthe:otherdirection. n e

' 3. flhe combination with "a'casefof Ia rod way the of 'vvhen awlieel. of :i vehicle provided with this devlce over au obstruction in the road. vwill be first, the axle S rises it meets the resistance not only of the xpzmd'ng springlenves und 55:, bei :il-so the resist-ence of s tne fumier. between tl 'e slip-rofl and the l )uw und (ne shoe we il b): the swinging -1 L sir-:taime is overcome, the shoe being 'plmhed upward., rclensi.. the slip-rofl and ellen-'s it to move 'freely Auntil the 1.1"

:L1-d :movement of the axle 8 toward the a' (E ik; stoppe-1l by the resiliency of thel* ingle-aves und 55. At this moment the force of said leaves is exerted to move. the frame 6 :may from the axle, and tends to relatively nieve the shoe and rofl as though the slip-rod 1 were drawn downward relative to the shoe, and thereupon the friction between said rod and the brake-shoe drags the brake-shoe. toward the 2 Said 5h06 being also imp'elled by the springr 51.,.'Iand the result is to again frictionally engage the slip-rod tightly, thus to resist sepnmt-ing movement of the elen'ients :1nd to rei-'ent rebounding of the vehicle frauneandJ body.

The brackets 19 4are separate from each other so as to be convenient for attachment 4to differentfaees of the element to which the frame is to be attached. lThe base of the binekets' need not be in thesame'plane.

1. The combination of a. case, a unile):- tending into the aise, a. jaw in the ease to enga tiene. lyengage the other side of the rod, and a bar pivotally mounted in the cese and forming' with :the shoe e toggle-joint to produce increased friction on the rod'when the shoe. is moved in one direction by frietion'of the moving rod on the shoe.`

The combination with two hraekets1 a oted in the freine, 'a rod extending through the euse, means 'to support one .sldefof txe rod, means to frictionally e'ngagethe other side of therod, 11nd n bur forming 'withthe last-named means. :i toggle-joint 'to grip the rod when it. is moved yin one direction and to release the same wheniit is moved, in.

to slide throqhthe case, means tao-support one side of the rodfa shoe to fric- 1 .frame pivoted in sedbrackets, a 'oase pxvonefside'of e rod, ineans to y'ie-tioimllly engage the other side of the rod,-=a ba-rpfpivv`otxlllyconnected with said last-named yineens to forma toggle-jointtherewith,endaspring tohpld th'eqi] aint yoperative .positionyjto causeffrictionnpon- 'the rodavhen the same VTI@The omb' ation-wich? ma ftolslifeithrengh therese, HG1t :nes1de9f2the redlimeenstu onellggeugage ,the btherjs'defjo'fthe'grod; pivot- 'l ally connected,4 with seid means,

to form a toggle-joint therewith,y a spring to hold the Joint in operative position to u on the rod when the same is moved in one direction, a block "to support the end of the swinging bar, Jand means to i adjust the block.

5. The coxnbinationl with the case, of a slip-rod, aY shoe and a swinging bar arranged to form a toggle-joint to frictionally resist the movementl of the rod, a block to sup- GEoCUsHING MARTIN.

In presence of-` JAMES R. TowNsEND,

" M. BEULAH ToWNsEND. 

